Product DNA What's It Do? This groundbreaking baselayer has been tested and proven to improve strength and endurance. Seriously. The way it works is that the mineral-infused fabric absorbs the energy your body emits and reflects it back into your tissues and muscles. That means your muscles can work harder. And you get better. The Fundamentals Compression: Ultra-tight, second skin fit As your body emits energy, the mineral-infused fabric absorbs & reflects it back into tissues & muscles, improving endurance & strength Mesh panels for strategic ventilation Modified raglan sleeve & low profile collar construction Powered by Celliant Imported This product is not available for returns